condition mean min max 0 h after light 6.644565 5.82842 7.46071 4 h after light 11.062574999999999 9.56795 12.5572 8 h after light 12.115649999999999 11.0969 13.1344 4 h after dark 11.795395 8.90439 14.6864 8 h after dark 9.399745 7.97259 10.8269 12 h after dark 5.624755 3.34145 7.90806